Finding the Fourth Proportional to 453,076.78, 679,190.73 and 153,347.62
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Solution
The fourth proportional to 453,076.78, 679,190.73 and 153,347.62 is: 229,877.77
Step by Step Solution
- Step 1: Write the proportion equation
453,076.78 : 679,190.73 = 153,347.62 : x - Step 2: Convert to fraction form
453,076.78/679,190.73 = 153,347.62/x - Step 3: Cross multiply
453,076.78x = 679,190.73 × 153,347.62 - Step 4: Simplify right side
453,076.78x = 104,152,281,971.56 - Step 5: Solve for x
x = 104,152,281,971.56/453,076.78 - Step 6: Final answer
x = 229,877.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.